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我厂300系列柴油机上的月牙扳手,梅花扳手、各种形状(圆形、方形、腰子形)的法兰,梅花形拨叉,厚垫圈及盖,共20种类型的产品零件,采用了温冲裁和温拉深,冲压温度200～850℃,冲压件的厚度从6～32毫米。典型温冲压的零件如图1所示:其中(a)(b)(d)(f)(g)为温冲裁件,(e)为温落料拉深件,(c)为热冲裁件。过去对这些中厚板零件,因设备能力和模具寿命的限制,无法采用冷冲压的方式加工,往往是先气割,然后把几件点焊在一起刨削加工成形;也有采用自由锻造后切削加工的。为了提高生产效率,减少冷加工工时,
I plant 300 series diesel engine on the crescent wrenches, wrenches, all kinds of shapes (round, square, kidney-shaped) of the flange, plum-shaped fork, thick washers and covers, a total of 20 types of product parts, using the temperature Blanking and deep drawing, stamping temperature 200 ~ 850 ℃, the thickness of stamping parts from 6 to 32 mm. Typical hot stamped parts are shown in Figure 1: (a) (b) (d) (f) (g) are temperature blanking pieces, (e) are warm blanking pieces, and Cut pieces. In the past on these plate parts, due to equipment capacity and mold life constraints, can not be used cold stamping process, often first gas cutting, and then a few pieces of spot welding together planing forming; also used after free forging machining of. In order to improve production efficiency and reduce working hours,